Ta-Ha - 20:92

قَالَ يَا هَارُونُ مَا مَنَعَكَ إِذْ رَأَيْتَهُمْ ضَلُّوا
[20:92]
(Musa) said: O Haroun! what prevented you, when you saw them going astray,
(Moses) said: "O Aaron! what kept thee back, when thou sawest them going wrong,
He (Moses) said: O Aaron! What held thee back when thou didst see them gone astray,